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LimeReport/3rdparty/zint-2.4.4/backend/maxicode.c
newsages 9797b30d0a Qzint , need change pro from lib to subfolder, config +=ordered, to add 
zint as subproyect
2016-03-21 00:49:04 +01:00

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/* maxicode.c - Handles Maxicode */
/*
libzint - the open source barcode library
Copyright (C) 2010 Robin Stuart <robin@zint.org.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* Includes corrections thanks to Monica Swanson @ Source Technologies */
#include "common.h"
#include "maxicode.h"
#include "reedsol.h"
#include <string.h>
#include <stdlib.h>
#ifdef __APPLE__
#include <sys/malloc.h>
#else
#include <malloc.h>
#endif
int maxi_codeword[144];
void maxi_do_primary_check( )
{
/* Handles error correction of primary message */
unsigned char data[15];
unsigned char results[15];
int j;
int datalen = 10;
int ecclen = 10;
rs_init_gf(0x43);
rs_init_code(ecclen, 1);
for(j = 0; j < datalen; j += 1)
data[j] = maxi_codeword[j];
rs_encode(datalen, data, results);
for ( j = 0; j < ecclen; j += 1)
maxi_codeword[ datalen + j] = results[ecclen - 1 - j];
rs_free();
}
void maxi_do_secondary_chk_odd( int ecclen )
{
/* Handles error correction of odd characters in secondary */
unsigned char data[100];
unsigned char results[30];
int j;
int datalen = 68;
rs_init_gf(0x43);
rs_init_code(ecclen, 1);
if (ecclen == 20)
datalen = 84;
for(j = 0; j < datalen; j += 1)
if (j & 1) // odd
data[(j-1)/2] = maxi_codeword[j + 20];
rs_encode(datalen/2, data, results);
for ( j = 0; j < (ecclen); j += 1)
maxi_codeword[ datalen + (2 *j) + 1 + 20 ] = results[ecclen - 1 - j];
rs_free();
}
void maxi_do_secondary_chk_even(int ecclen )
{
/* Handles error correction of even characters in secondary */
unsigned char data[100];
unsigned char results[30];
int j;
int datalen = 68;
if (ecclen == 20)
datalen = 84;
rs_init_gf(0x43);
rs_init_code(ecclen, 1);
for(j = 0; j < datalen + 1; j += 1)
if (!(j & 1)) // even
data[j/2] = maxi_codeword[j + 20];
rs_encode(datalen/2, data, results);
for ( j = 0; j < (ecclen); j += 1)
maxi_codeword[ datalen + (2 *j) + 20] = results[ecclen - 1 - j];
rs_free();
}
void maxi_bump(int set[], int character[], int bump_posn)
{
/* Moves everything up so that a shift or latch can be inserted */
int i;
for(i = 143; i > bump_posn; i--) {
set[i] = set[i - 1];
character[i] = character[i - 1];
}
}
int maxi_text_process(int mode, unsigned char source[], int length)
{
/* Format text according to Appendix A */
/* This code doesn't make use of [Lock in C], [Lock in D]
and [Lock in E] and so is not always the most efficient at
compressing data, but should suffice for most applications */
int set[144], character[144], i, j, done, count, current_set;
if(length > 138) {
return ERROR_TOO_LONG;
}
for(i = 0; i < 144; i++) {
set[i] = -1;
character[i] = 0;
}
for (i = 0; i < length; i++) {
/* Look up characters in table from Appendix A - this gives
value and code set for most characters */
set[i] = maxiCodeSet[source[i]];
character[i] = maxiSymbolChar[source[i]];
}
/* If a character can be represented in more than one code set,
pick which version to use */
if(set[0] == 0) {
if(character[0] == 13) {
character[0] = 0;
}
set[0] = 1;
}
for(i = 1; i < length; i++) {
if(set[i] == 0) {
done = 0;
/* Special character */
if(character[i] == 13) {
/* Carriage Return */
if(set[i - 1] == 5) {
character[i] = 13;
set[i] = 5;
} else {
if((i != length - 1) && (set[i + 1] == 5)) {
character[i] = 13;
set[i] = 5;
} else {
character[i] = 0;
set[i] = 1;
}
}
done = 1;
}
if((character[i] == 28) && (done == 0)) {
/* FS */
if(set[i - 1] == 5) {
character[i] = 32;
set[i] = 5;
} else {
set[i] = set[i - 1];
}
done = 1;
}
if((character[i] == 29) && (done == 0)) {
/* GS */
if(set[i - 1] == 5) {
character[i] = 33;
set[i] = 5;
} else {
set[i] = set[i - 1];
}
done = 1;
}
if((character[i] == 30) && (done == 0)) {
/* RS */
if(set[i - 1] == 5) {
character[i] = 34;
set[i] = 5;
} else {
set[i] = set[i - 1];
}
done = 1;
}
if((character[i] == 32) && (done == 0)) {
/* Space */
if(set[i - 1] == 1) {
character[i] = 32;
set[i] = 1;
}
if(set[i - 1] == 2) {
character[i] = 47;
set[i] = 2;
}
if(set[i - 1] >= 3) {
if(i != length - 1) {
if(set[i + 1] == 1) {
character[i] = 32;
set[i] = 1;
}
if(set[i + 1] == 2) {
character[i] = 47;
set[i] = 2;
}
if(set[i + 1] >= 3) {
character[i] = 59;
set[i] = set[i - 1];
}
} else {
character[i] = 59;
set[i] = set[i - 1];
}
}
done = 1;
}
if((character[i] == 44) && (done == 0)) {
/* Comma */
if(set[i - 1] == 2) {
character[i] = 48;
set[i] = 2;
} else {
if((i != length - 1) && (set[i + 1] == 2)) {
character[i] = 48;
set[i] = 2;
} else {
set[i] = 1;
}
}
done = 1;
}
if((character[i] == 46) && (done == 0)) {
/* Full Stop */
if(set[i - 1] == 2) {
character[i] = 49;
set[i] = 2;
} else {
if((i != length - 1) && (set[i + 1] == 2)) {
character[i] = 49;
set[i] = 2;
} else {
set[i] = 1;
}
}
done = 1;
}
if((character[i] == 47) && (done == 0)) {
/* Slash */
if(set[i - 1] == 2) {
character[i] = 50;
set[i] = 2;
} else {
if((i != length - 1) && (set[i + 1] == 2)) {
character[i] = 50;
set[i] = 2;
} else {
set[i] = 1;
}
}
done = 1;
}
if((character[i] == 58) && (done == 0)) {
/* Colon */
if(set[i - 1] == 2) {
character[i] = 51;
set[i] = 2;
} else {
if((i != length - 1) && (set[i + 1] == 2)) {
character[i] = 51;
set[i] = 2;
} else {
set[i] = 1;
}
}
done = 1;
}
}
}
for(i = length; i < 144; i++) {
/* Add the padding */
if(set[length - 1] == 2) {
set[i] = 2;
} else {
set[i] = 1;
}
character[i] = 33;
}
/* Find candidates for number compression */
if((mode == 2) || (mode ==3)) { j = 0; } else { j = 9; }
/* Number compression not allowed in primary message */
count = 0;
for(i = j; i < 143; i++) {
if((set[i] == 1) && ((character[i] >= 48) && (character[i] <= 57))) {
/* Character is a number */
count++;
} else {
count = 0;
}
if(count == 9) {
/* Nine digits in a row can be compressed */
set[i] = 6;
set[i - 1] = 6;
set[i - 2] = 6;
set[i - 3] = 6;
set[i - 4] = 6;
set[i - 5] = 6;
set[i - 6] = 6;
set[i - 7] = 6;
set[i - 8] = 6;
count = 0;
}
}
/* Add shift and latch characters */
current_set = 1;
i = 0;
do {
if(set[i] != current_set) {
switch(set[i]) {
case 1:
if(set[i + 1] == 1) {
if(set[i + 2] == 1) {
if(set[i + 3] == 1) {
/* Latch A */
maxi_bump(set, character, i);
character[i] = 63;
current_set = 1;
length++;
} else {
/* 3 Shift A */
maxi_bump(set, character, i);
character[i] = 57;
length++;
i += 2;
}
} else {
/* 2 Shift A */
maxi_bump(set, character, i);
character[i] = 56;
length++;
i++;
}
} else {
/* Shift A */
maxi_bump(set, character, i);
character[i] = 59;
length++;
}
break;
case 2:
if(set[i + 1] == 2) {
/* Latch B */
maxi_bump(set, character, i);
character[i] = 63;
current_set = 2;
length++;
} else {
/* Shift B */
maxi_bump(set, character, i);
character[i] = 59;
length++;
}
break;
case 3:
/* Shift C */
maxi_bump(set, character, i);
character[i] = 60;
length++;
break;
case 4:
/* Shift D */
maxi_bump(set, character, i);
character[i] = 61;
length++;
break;
case 5:
/* Shift E */
maxi_bump(set, character, i);
character[i] = 62;
length++;
break;
case 6:
/* Number Compressed */
/* Do nothing */
break;
}
i++;
}
i++;
} while(i < 145);
/* Number compression has not been forgotten! - It's handled below */
i = 0;
do {
if (set[i] == 6) {
/* Number compression */
char substring[11];
int value;
for(j = 0; j < 10; j++) {
substring[j] = character[i + j];
}
substring[10] = '\0';
value = atoi(substring);
character[i] = 31; /* NS */
character[i + 1] = (value & 0x3f000000) >> 24;
character[i + 2] = (value & 0xfc0000) >> 18;
character[i + 3] = (value & 0x3f000) >> 12;
character[i + 4] = (value & 0xfc0) >> 6;
character[i + 5] = (value & 0x3f);
i += 6;
for(j = i; j < 140; j++) {
set[j] = set[j + 3];
character[j] = character[j + 3];
}
length -= 3;
} else {
i++;
}
} while (i <= 143);
if(((mode ==2) || (mode == 3)) && (length > 84)) {
return ERROR_TOO_LONG;
}
if(((mode == 4) || (mode == 6)) && (length > 93)) {
return ERROR_TOO_LONG;
}
if((mode == 5) && (length > 77)) {
return ERROR_TOO_LONG;
}
/* Copy the encoded text into the codeword array */
if((mode == 2) || (mode == 3)) {
for(i = 0; i < 84; i++) { /* secondary only */
maxi_codeword[i + 20] = character[i];
}
}
if((mode == 4) || (mode == 6)) {
for(i = 0; i < 9; i++) { /* primary */
maxi_codeword[i + 1] = character[i];
}
for(i = 0; i < 84; i++) { /* secondary */
maxi_codeword[i + 20] = character[i + 9];
}
}
if(mode == 5) {
for(i = 0; i < 9; i++) { /* primary */
maxi_codeword[i + 1] = character[i];
}
for(i = 0; i < 68; i++) { /* secondary */
maxi_codeword[i + 20] = character[i + 9];
}
}
return 0;
}
void maxi_do_primary_2(char postcode[], int country, int service)
{
/* Format structured primary for Mode 2 */
int postcode_length, postcode_num, i;
for(i = 0; i < 10; i++) {
if((postcode[i] < '0') || (postcode[i] > '9')) {
postcode[i] = '\0';
}
}
postcode_length = strlen(postcode);
postcode_num = atoi(postcode);
maxi_codeword[0] = ((postcode_num & 0x03) << 4) | 2;
maxi_codeword[1] = ((postcode_num & 0xfc) >> 2);
maxi_codeword[2] = ((postcode_num & 0x3f00) >> 8);
maxi_codeword[3] = ((postcode_num & 0xfc000) >> 14);
maxi_codeword[4] = ((postcode_num & 0x3f00000) >> 20);
maxi_codeword[5] = ((postcode_num & 0x3c000000) >> 26) | ((postcode_length & 0x3) << 4);
maxi_codeword[6] = ((postcode_length & 0x3c) >> 2) | ((country & 0x3) << 4);
maxi_codeword[7] = (country & 0xfc) >> 2;
maxi_codeword[8] = ((country & 0x300) >> 8) | ((service & 0xf) << 2);
maxi_codeword[9] = ((service & 0x3f0) >> 4);
}
void maxi_do_primary_3(char postcode[], int country, int service)
{
/* Format structured primary for Mode 3 */
int i, h;
h = strlen(postcode);
to_upper((unsigned char*)postcode);
for(i = 0; i < h; i++) {
if((postcode[i] >= 'A') && (postcode[i] <= 'Z')) {
/* (Capital) letters shifted to Code Set A values */
postcode[i] -= 64;
}
if(((postcode[i] == 27) || (postcode[i] == 31)) || ((postcode[i] == 33) || (postcode[i] >= 59))) {
/* Not a valid postcode character */
postcode[i] = ' ';
}
/* Input characters lower than 27 (NUL - SUB) in postcode are
interpreted as capital letters in Code Set A (e.g. LF becomes 'J') */
}
maxi_codeword[0] = ((postcode[5] & 0x03) << 4) | 3;
maxi_codeword[1] = ((postcode[4] & 0x03) << 4) | ((postcode[5] & 0x3c) >> 2);
maxi_codeword[2] = ((postcode[3] & 0x03) << 4) | ((postcode[4] & 0x3c) >> 2);
maxi_codeword[3] = ((postcode[2] & 0x03) << 4) | ((postcode[3] & 0x3c) >> 2);
maxi_codeword[4] = ((postcode[1] & 0x03) << 4) | ((postcode[2] & 0x3c) >> 2);
maxi_codeword[5] = ((postcode[0] & 0x03) << 4) | ((postcode[1] & 0x3c) >> 2);
maxi_codeword[6] = ((postcode[0] & 0x3c) >> 2) | ((country & 0x3) << 4);
maxi_codeword[7] = (country & 0xfc) >> 2;
maxi_codeword[8] = ((country & 0x300) >> 8) | ((service & 0xf) << 2);
maxi_codeword[9] = ((service & 0x3f0) >> 4);
}
int maxicode(struct zint_symbol *symbol, unsigned char source[], int length)
{
int i, j, block, bit, mode, countrycode = 0, service = 0, lp = 0;
int bit_pattern[7], internal_error = 0, eclen, error_number;
char postcode[12], countrystr[4], servicestr[4];
#ifndef _MSC_VER
unsigned char local_source[length + 1];
#else
unsigned char* local_source = (unsigned char*)_alloca(length + 1);
#endif
mode = symbol->option_1;
strcpy(postcode, "");
strcpy(countrystr, "");
strcpy(servicestr, "");
/* The following to be replaced by ECI handling */
switch(symbol->input_mode) {
case DATA_MODE:
case GS1_MODE:
memcpy(local_source, source, length);
local_source[length] = '\0';
break;
case UNICODE_MODE:
error_number = latin1_process(symbol, source, local_source, &length);
if(error_number != 0) { return error_number; }
break;
}
memset(maxi_codeword, 0, sizeof(maxi_codeword));
if(mode == -1) { /* If mode is unspecified */
lp = strlen(symbol->primary);
if(lp == 0) {
mode = 4;
} else {
mode = 2;
for(i = 0; i < 10 && i < lp; i++) {
if((symbol->primary[i] < 48) || (symbol->primary[i] > 57)) {
mode = 3;
break;
}
}
}
}
if((mode < 2) || (mode > 6)) { /* Only codes 2 to 6 supported */
strcpy(symbol->errtxt, "Invalid Maxicode Mode");
return ERROR_INVALID_OPTION;
}
if((mode == 2) || (mode == 3)) { /* Modes 2 and 3 need data in symbol->primary */
if(lp == 0){ /* Mode set manually means lp doesn't get set */
lp = strlen( symbol->primary );
}
if(lp != 15) {
strcpy(symbol->errtxt, "Invalid Primary String");
return ERROR_INVALID_DATA1;
}
for(i = 9; i < 15; i++) { /* check that country code and service are numeric */
if((symbol->primary[i] < '0') || (symbol->primary[i] > '9')) {
strcpy(symbol->errtxt, "Invalid Primary String");
return ERROR_INVALID_DATA1;
}
}
memcpy(postcode, symbol->primary, 9);
postcode[9] = '\0';
if(mode == 2) {
for(i = 0; i < 10; i++) {
if(postcode[i] == ' ') {
postcode[i] = '\0';
}
}
}
else if(mode == 3) { postcode[6] = '\0'; }
countrystr[0] = symbol->primary[9];
countrystr[1] = symbol->primary[10];
countrystr[2] = symbol->primary[11];
countrystr[3] = '\0';
servicestr[0] = symbol->primary[12];
servicestr[1] = symbol->primary[13];
servicestr[2] = symbol->primary[14];
servicestr[3] = '\0';
countrycode = atoi(countrystr);
service = atoi(servicestr);
if(mode == 2) { maxi_do_primary_2(postcode, countrycode, service); }
if(mode == 3) { maxi_do_primary_3(postcode, countrycode, service); }
} else {
maxi_codeword[0] = mode;
}
i = maxi_text_process(mode, local_source, length);
if(i == ERROR_TOO_LONG ) {
strcpy(symbol->errtxt, "Input data too long");
return i;
}
/* All the data is sorted - now do error correction */
maxi_do_primary_check(); /* always EEC */
if ( mode == 5 )
eclen = 56; // 68 data codewords , 56 error corrections
else
eclen = 40; // 84 data codewords, 40 error corrections
maxi_do_secondary_chk_even(eclen/2); // do error correction of even
maxi_do_secondary_chk_odd(eclen/2); // do error correction of odd
/* Copy data into symbol grid */
for(i = 0; i < 33; i++) {
for(j = 0; j < 30; j++) {
block = (MaxiGrid[(i * 30) + j] + 5) / 6;
bit = (MaxiGrid[(i * 30) + j] + 5) % 6;
if(block != 0) {
bit_pattern[0] = (maxi_codeword[block - 1] & 0x20) >> 5;
bit_pattern[1] = (maxi_codeword[block - 1] & 0x10) >> 4;
bit_pattern[2] = (maxi_codeword[block - 1] & 0x8) >> 3;
bit_pattern[3] = (maxi_codeword[block - 1] & 0x4) >> 2;
bit_pattern[4] = (maxi_codeword[block - 1] & 0x2) >> 1;
bit_pattern[5] = (maxi_codeword[block - 1] & 0x1);
if(bit_pattern[bit] != 0) {
set_module(symbol, i, j);
}
}
}
}
/* Add orientation markings */
set_module(symbol, 0, 28); // Top right filler
set_module(symbol, 0, 29);
set_module(symbol, 9, 10); // Top left marker
set_module(symbol, 9, 11);
set_module(symbol, 10, 11);
set_module(symbol, 15, 7); // Left hand marker
set_module(symbol, 16, 8);
set_module(symbol, 16, 20); // Right hand marker
set_module(symbol, 17, 20);
set_module(symbol, 22, 10); // Bottom left marker
set_module(symbol, 23, 10);
set_module(symbol, 22, 17); // Bottom right marker
set_module(symbol, 23, 17);
symbol->width = 30;
symbol->rows = 33;
return internal_error;
}
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